%%
%% The LaTeX Companion, 3ed
%%
%% Example 15-7-8 on page II-433 in "An overview of biblatex styles".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{207.0pt}

%  Use biber program
  \makeatletter
  \renewcommand\section{\@startsection{section}{1}{\z@}%
    {-1.25ex \@plus-1ex \@minus-.2ex}%
    {.5ex}%
    {\normalfont\normalsize\bfseries}}
  \makeatother
  \setlength\parindent{0pt}

  \usepackage{microtype}  % improve line breaking

%StartShownPreambleCommands
\usepackage[style=authoryear]{biblatex}
\addbibresource{tlc.bib}

%StopShownPreambleCommands

\begin{document}
\nocite{Knuth:TB10-1-31,Knuth-CT-a}
\printbibliography
\end{document}
